Stuart Brown, a physician, psychiatrist and clinical researcher, has made a career of studying the effects of play on people and animals. His conclusion is that play is no less important than oxygen - it's a powerful force in nature that helps determine the likelihood of the very survival of the human race. Sprinkled with anecdotes demonstrating the play habits of subjects as diverse as polar bears and corporate CEOs, Brown and co-writer Vaughan present a compelling case for promoting play at every age.
